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Zhang Z, Xu Q, Wang Y, Qu S, Tan J, Tang Y, Li P, Zheng X. Exploiting the synergistic antibacterial activity of shikimic acid and ceftiofur against methicillin-resistant Staphylococcus aureus. World J Microbiol Biotechnol 2024; 40:78. [PMID: 38253730 DOI: 10.1007/s11274-023-03876-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/17/2023] [Indexed: 01/24/2024]
Abstract
Efforts to curtail the escalating health threat posed by methicillin-resistant Staphylococcus aureus (MRSA), a formidable superbug, necessitate the development of innovative treatment strategies. Leveraging potential compounds from natural sources in tandem with antibiotics has emerged as a promising approach against MRSA. These strategies should enhance the antibiotic efficacy, reduce dosage and toxicity, and bypass MRSA resistance. In this study, we used a checkerboard assay to illustrate the significant synergistic anti-MRSA effect of shikimic acid (SA), a naturally occurring compound, and ceftiofur (CF). Time-kill curves further revealed that a combination of 1/4 of the minimum inhibitory concentration (MIC) of SA and 1/8 MIC of the sodium CF eradicated MRSA within 2 h, with no noticeable toxicity observed with these concentrations. In vivo experiments confirmed that this combination therapy demonstrated robust antimicrobial activity against MRSA-induced bacteremia in mice, significantly reducing bacterial loads in the kidneys, liver, and spleen, attenuating inflammatory cell infiltration, and alleviating pathological damage. This study not only offers a compelling strategy, capitalizing on the synergistic potential of SA and CF, to rapidly address antibiotic resistance but also contributes significantly to the refinement of antimicrobial therapeutic strategies.
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Affiliation(s)
- Zhuohui Zhang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, 410128, China
| | - Qianqian Xu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, 410128, China
| | - Yan Wang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, 410128, China
| | - Shiyin Qu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, 410128, China
| | - Junjie Tan
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, 410128, China
| | - Yulong Tang
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Pishun Li
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China.
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, 410128, China.
| | - Xiaofeng Zheng
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China.
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, 410128, China.
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Methods in Medicine CAM. Retracted: The in Vitro Antimicrobial and Antibiofilm Activities of Lysozyme against Gram-Positive Bacteria. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2023; 2023:9821398. [PMID: 37503425 PMCID: PMC10371621 DOI: 10.1155/2023/9821398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
[This retracts the article DOI: 10.1155/2022/4559982.].
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